On-line lifting mechanism and technology for the upper structure of aluminum electrolytic cell

Abstract

The invention discloses an on-line jacking and lifting mechanism for an upper portion structure of an aluminum electrolysis cell. The mechanism comprises an electrolysis cell shell and anode conducting devices; the outer wall of the electrolysis cell shell is connected with a horizontal edge plate, the horizontal edge plate is provided with adjusting supports which are arranged in pairs, the top of each adjusting support is connected with a door-shaped stand column, and a door-shaped frame crossbeam is connected between every two door-shaped stand columns; the door-shaped frame crossbeams are provided with upper portion bearing trusses; the bottoms of the side walls of the door-shaped frame crossbeams are provided with horizontal smoke cover plates, and a pole changing space is formed between the horizontal smoke cover plates and the horizontal edge plate; the upper portion bearing trusses are connected with a lifting machine, the lifting machine is connected with busbar lifting and connecting mechanisms, and the busbar lifting and connecting mechanisms are connected with anode big busbars; the horizontal edge plate is provided with a jack through an antiskid insulated support frame. The invention further discloses an on-line jacking and lifting technology applying the mechanism. When the upper portion structure of the aluminum electrolysis cell is lifted, the polar distance of the aluminum electrolysis cell keeps invariable, therefore, on-line stable operation of the aluminum electrolysis cell can be achieved, power and the cell do not need to be stopped, and the cost is significantly reduced.

Description

technical field [0001] The invention relates to the technical field of electrolytic aluminum, in particular to related technologies for prolonging the service life of anode carbon blocks. Background technique [0002] The general-purpose aluminum electrolytic cell is mainly composed of the lower molten pool structure of the aluminum electrolytic cell, the upper bearing structure of the aluminum electrolytic cell, the anode conductive device, the feeding mechanism of the aluminum electrolytic cell and the smoke and dust removal device. [0003] The molten pool structure of the aluminum electrolytic cell is composed of the cathode carbon block lining built inside the tank shell, the side furnace wall and the bottom insulation refractory material; the upper part of the cathode lining is the aluminum liquid layer, and the upper part of the aluminum liquid layer is the electrolyte liquid layer. [0004] The existing aluminum electrolytic cell includes an electrolytic cell shell ...

AI Technical Summary

Problems solved by technology

[0012] 1. The aluminum electrolytic cell needs to invest a lot of manpower and material resources in the short-circuit power failure of the busbar and the restoration of the busbar power supply to remove the short-circuit device, and the cost is very high

[0013] 2. During the lifting operation of the aluminum electrolytic cell after a power outage, the working condition of the aluminum electrolytic cell will undergo a sharp reverse abnormal change, which will damage the stability of the aluminum electrolytic cell

However, after the lifting operation is completed, a large amount of electric energy is consumed after the normal power supply is restored, so that the aluminum electrolytic cell returns to the normal working condition, which wastes a large amount of energy.

[0014] 3. In order to reduce the negative impact of the power outage and stop the cell to raise the anode on the stable working condition of the aluminum electrolytic cell, it is necessary to do a lot of adjustment work on the heat preservation and material balance of the aluminum electrolytic cell, and the investment in manpower, materials and materials is relatively large

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